Question
A hostel levies a fixed charge along with an additional
charge per student. The total charge for 9 students is Rs. 2400, and for 16 students, it is Rs. 3800. Determine the ratio of the fixed charge to the additional charge per student.Solution
Let the fixed charge and additional charge per student be Rs. 'x' and Rs. 'y' respectively. ATQ, Total charge for 9 students = Rs. (x + 9y) Or, (x + 9y) = 2400......(I) Total charge for 16 students = Rs. (x + 16y) Or, (x + 16y) = 3800......(II) On subtracting Equation (I) from (II) , we get, So, 7y = 1400 So, 'y' = 200 Also 'x' = 2400 - 9 X 200 = 600 Therefore, required ratio = 600:200 = 3:1
A sum of money is divided among P, Q, R and S in the ratio of 1:2:6:7 respectively. If the share of R's is Rs. 2860 more than the share of Q, then what ...
The ratio of the number of girls to the number of boys in a school of 720 students is 3 : 5. If 18 boys left the school, find how many new girls ...
Find the third proportion of √ 2, √ 7 and √ 21.
The ratio of the salaries of Amit, Raj, and Dev is 5:6:7 respectively. Sumit’s salary is 10 rupees less than Amit’s. If the difference between Dev ...
There is a mixture of 63 liters of apple juice and water in a vessel. The ratio of apple juice to water is 3:4. If 14 liters of the mixture is taken out...
If the third proportion of 45 and 60 is “0.5k”, then find the value of (k − 20) : (k + 40).
P, Q and R together started a business. Three times the investment of P equals five times the investment of Q and the capital of Q is twice that of R. F...
What is the fourth proportional to 10¹⁵, 2⁶ and 5⁶?
Two numbers are in the ratio of 6:13. If three is added to both numbers, the ratio becomes 1:2. Find the smaller number.
- If A: B = 4: 5 and B: C = 3: 7, then what is the value of (3A + 8C)/(6B - 2C)?